| /******************************************************************************* |
| * Copyright (c) 2013, 2014 Ericsson |
| * |
| * All rights reserved. This program and the accompanying materials are |
| * made available under the terms of the Eclipse Public License 2.0 which |
| * accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Marc-Andre Laperle - Initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.internal.tmf.core.trace.indexer; |
| |
| import org.eclipse.tracecompass.tmf.core.trace.indexer.checkpoint.ITmfCheckpoint; |
| |
| /** |
| * A BTree visitor goes through the tree using a comparator for |
| * optimal searches. |
| * |
| * @author Marc-Andre Laperle |
| */ |
| public interface IBTreeVisitor { |
| |
| /** |
| * The current checkpoint being compared against an internally held key. |
| * |
| * @param checkpoint |
| * the current checkpoint |
| * @return -1 if checkpoint < key, 0 if checkpoint == key, 1 if checkpoint > |
| * key |
| */ |
| int compare(ITmfCheckpoint checkpoint); |
| } |